Without using Acumatica Licensing and feature.xml, hide/show menu of my workspace in customization

​@ashrivastava42  Recommended approach

Create a custom configuration/permission that controls the visibility of your customization items:

Custom Configuration

• Create a setup/preferences DAC, for example:
  • UsrEnableCustomizationMenu
• Add the setting to your own Setup/Preferences screen.
• Use this setting when determining whether your custom menu/workspace items should be exposed.

Permissions

• Create a dedicated Acumatica role/permission for your customization, for example:
  • Customization Menu Access
• Assign that permission only to users who should see the functionality.

Then your effective condition becomes:

Show customization items
    =
Custom Configuration Enabled
    AND
User Has Custom Permission

This keeps the logic completely independent of:

Features.xml
Acumatica licensing
Acumatica feature flags

For Workspace / Menu Items

For items that you own/control, I would avoid modifying the standard Acumatica menu hierarchy globally. Instead, define your customization entries and control their availability based on your configuration/permission.

Conceptually:

bool showCustomizationMenu =
    setup.UsrEnableCustomizationMenu == true
    && PXAccess.VerifyRights(customAccessRights);

Then apply that condition when your customization determines whether the menu/workspace item is exposed.